Question

99^n is such a number begin with 8, least value of n?

Answer 1

Solution:

11 will be ans.

99² = 9801

99³ = 970299

99⁴ = 96059601

Same as.....

Take first two digit for n = 1,  99

n=2, 98

n=3, 97

n=4, 96

......................................................

n=10, 90

n=11 , 89

Thus, for n = 11, the number starts with 8.